Added a contrib directory and added videojs-tech-dashjs to it.
Merge pull request #166 from heff/contrib

Added a contrib directory and added videojs-tech-dashjs to it
added token auth calls to three other request cases for the init segment.
Merge pull request #172 from AkamaiDASH/development

added token auth calls to three other request cases for the init segment...
fix to make samples/ad-insertion work when hosted elsewhere